Company lists · Data refreshed September 2026

Top 25 Pump maintenance companies based in the United States

Name: Pump maintenance companies based in the United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 20, 2026 744 companies tracked

RevenueBase identified 744 pump maintenance companies headquartered in the United States as of September 2026 and tracks 15,809 professional contacts across them, including 5,728 with verified work emails. Houston is the largest hub.

This list covers pump maintenance companies headquartered in the United States, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Every row shows the company's own description, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 20, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase Smart Search, the natural-language company search RevenueBase customers use to build their own targeted lists and unlock verified emails and direct dials at the companies on them. How these lists are built and judged.

How to read this list HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 20, 2026 86% judged on-target in blind review

744Companies

15,809Contacts tracked

5,728Verified emails

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The 25 largest pump maintenance companies based in the United States

Ranked by team size

Top 25 of 744 pump maintenance companies based in the United States, ranked by team size, largest first. Data refreshed Sep 20, 2026. RevenueBase Smart Search rates how each company's information relates to pump maintenance companies: strong evidence (its own description names it), partial (names part of it), indirect (matched on the rest of its profile rather than the description shown). Click a contact count to view that company's people.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	NCH	Partial evidence	Wilmington, DE, United StatesHQ checked Sep 20, 2026	10001+	2,361 contacts →
	Partial evidence “Cleaning water, conserving energy and delivering maintenance solutions since 1919.” Source: RevenueBase Database · checked Sep 20, 2026
2	DXP Enterprises, INC	Partial evidence	Houston, TX, United StatesHQ checked Sep 20, 2026	1,001-5,000	1,964 contacts →
	Partial evidence “DXP Enterprises is a publicly traded industrial distribution management company specializing in pumps, industrial supplies, and MROP solutions.” Source: RevenueBase Database · checked Sep 20, 2026
3	Universal Plant Services	Indirect evidence	Deer Park, TX, United StatesHQ checked Sep 20, 2026	501-1,000	1,371 contacts →
	Indirect evidence “Universal Plant Services (UPS) is the industry's foremost specialists in rotating and reciprocating equipment services.” Source: RevenueBase Database · checked Sep 20, 2026
4	Carotek	Indirect evidence	Matthews, NC, United StatesHQ checked Sep 20, 2026	51-200	205 contacts →
	Indirect evidence “Carotek provides process solutions.” Source: RevenueBase Database · checked Sep 20, 2026
5	Atlas Machine & Supply, INC	Indirect evidence	Louisville, KY, United StatesHQ checked Sep 20, 2026	201-500	185 contacts →
	Indirect evidence “Atlas designs, repairs, and remanufactures complex equipment and components for industry and municipalities.” Source: RevenueBase Database · checked Sep 20, 2026
6	Sack Company	Indirect evidence	Statesboro, GA, United StatesHQ checked Sep 20, 2026	501-1,000	184 contacts →
	Indirect evidence “With offices in Statesboro, GA, Savannah, GA, Atlanta, GA, Charlotte, NC, and Lexington, SC, The Sack Company is one of the largest industrial mechanical, electrical, plumbing…” Source: RevenueBase Database · checked Sep 20, 2026
7	JAY Industrial Repair	Indirect evidence	Birmingham, AL, United StatesHQ checked Sep 20, 2026	201-500	183 contacts →
	Indirect evidence “Jay Industrial Repair is an industrial service and manufacturing business focused on quality on-time solutions in electric motor and controls sales and services, and in-field…” Source: RevenueBase Database · checked Sep 20, 2026
8	Cornell Pump Company, LLC	Partial evidence	Clackamas, OR, United StatesHQ checked Sep 20, 2026	201-500	167 contacts →
	Partial evidence “EFFICIENT BY DESIGN since 1946: The story of Cornell starts in 1946 when five people working at Pacific Pump Company decided to head out on their own.” Source: RevenueBase Database · checked Sep 20, 2026
9	Northwest Pump	Partial evidence	Portland, OR, United StatesHQ checked Sep 20, 2026	201-500	158 contacts →
	Partial evidence “Northwest Pump is the West's largest distributor of Petroleum equipment and Industrial pumps and compressors, since 1959.” Source: RevenueBase Database · checked Sep 20, 2026
10	Crane Pumps & Systems	Partial evidence	Piqua, OH, United StatesHQ checked Sep 20, 2026	501-1,000	151 contacts →
	Partial evidence “Crane Pumps & Systems is a world-class manufacturer of quality pumps and accessories offering a wide range of solutions and services for the municipal, residential building…” Source: RevenueBase Database · checked Sep 20, 2026
11	Anderson Process	Indirect evidence	Brookfield, WI, United StatesHQ checked Sep 20, 2026	51-200	132 contacts →
	Indirect evidence “Since 1958, Anderson Process has been the Midwest’s trusted supplier of fluid management equipment and reliable, value-added service.” Source: RevenueBase Database · checked Sep 20, 2026
12	Knighten Industries	Partial evidence	Odessa, TX, United StatesHQ checked Sep 20, 2026	51-200	132 contacts →
	Partial evidence “Knighten Industries is a full-service pump distributor offering parts, sales, and service of brand name manufacturers.” Source: RevenueBase Database · checked Sep 20, 2026
13	Electric Motor & Contracting Co., INC	Partial evidence	Chesapeake, VA, United StatesHQ checked Sep 20, 2026	201-500	131 contacts →
	Partial evidence “Established in 1960, Electric Motor and Contracting remains one of the largest independently owned electric motor and pump repair shops in the U.S.” Source: RevenueBase Database · checked Sep 20, 2026
14	Cummins-Wagner Co., INC	Indirect evidence	Annapolis Junction, MD, United StatesHQ checked Sep 20, 2026	201-500	121 contacts →
	Indirect evidence “Founded in 1960 by “Charlie” Cummins and “Chub” Wagner, Cummins-Wagner serves Maryland, Virginia, Washington DC, Delaware, West Virginia, and Pennsylvania with leading brands of…” Source: RevenueBase Database · checked Sep 20, 2026
15	Floworks	Indirect evidence	Houston, TX, United StatesHQ checked Sep 20, 2026	501-1,000	121 contacts →
	Indirect evidence “FloWorks goes to market as through its team of companies of Sunbelt Supply, Oliver Equipment Company, Genesis Systems, SemiTorr Group, Triple S Flotech, McKenna Engineering…” Source: RevenueBase Database · checked Sep 20, 2026
16	Tate Engineering Systems, INC	Indirect evidence	Baltimore, MD, United StatesHQ checked Sep 20, 2026	51-200	115 contacts →
	Indirect evidence “For over 102 years, Tate Engineering has been a trusted provider of mechanical and industrial solutions across the Mid-Atlantic.” Source: RevenueBase Database · checked Sep 20, 2026
17	Power Services Group, INC	Partial evidence	Cape Coral, FL, United StatesHQ checked Sep 20, 2026	51-200	107 contacts →
	Partial evidence “Power Services Group (PSG) is the leading US-owned, independent provider of turnkey maintenance, repair, and overhaul solutions for steam and gas turbines.” Source: RevenueBase Database · checked Sep 20, 2026
18	JCI Industries	Indirect evidence	Lee's Summit, MO, United StatesHQ checked Sep 20, 2026	51-200	107 contacts →
	Indirect evidence “JCI Industries, Inc.” Source: RevenueBase Database · checked Sep 20, 2026
19	Dearing Compressor & Pump CO	Partial evidence	Youngstown, OH, United StatesHQ checked Sep 20, 2026	51-200	103 contacts →
	Partial evidence “Founded in 1945, Dearing Compressor & Pump Co.” Source: RevenueBase Database · checked Sep 20, 2026
20	Horner Industrial Group	Indirect evidence	Indianapolis, IN, United StatesHQ checked Sep 20, 2026	201-500	102 contacts →
	Indirect evidence “For over half a century, Horner Industrial Group has been helping to power your business with industry leading service, quality and value by providing excellence in electrical…” Source: RevenueBase Database · checked Sep 20, 2026
21	Zone Industries	Indirect evidence	Spring, TX, United StatesHQ checked Sep 20, 2026	51-200	97 contacts →
	Indirect evidence “Zone Industries started in the Houston area in 2012 with a single driving mission: to build the go-to solution for clients with any motor-related issue.” Source: RevenueBase Database · checked Sep 20, 2026
22	Conhagen Rotating Equipment Specialist	Indirect evidence	Kenner, LA, United StatesHQ checked Sep 20, 2026	51-200	94 contacts →
	Indirect evidence “Conhagen is a comprehensive provider of industrial rotating equipment services, including engineering, field services, shop services, manufacturing, and repairs, allowing us to…” Source: RevenueBase Database · checked Sep 20, 2026
23	Enpro, INC	Indirect evidence	Addison, IL, United StatesHQ checked Sep 20, 2026	51-200	91 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 20, 2026
24	Gpm, INC	Partial evidence	Duluth, MN, United StatesHQ checked Sep 20, 2026	51-200	91 contacts →
	Partial evidence “GPM manufactures, distributes and services the toughest, most reliable submersible and horizontal slurry pumps found anywhere in the world, the GPM-Eliminator.” Source: RevenueBase Database · checked Sep 20, 2026
25	HECO	Indirect evidence	Kalamazoo, MI, United StatesHQ checked Sep 20, 2026	51-200	87 contacts →
	Indirect evidence “HECO helps industrial plants utilize more dependable motors and equipment.” Source: RevenueBase Database · checked Sep 20, 2026

RevenueBase Smart Search

RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: pump maintenance companies. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.

Strong evidence: The company's own public description of its business names pump maintenance companies.
Partial evidence: Its own public description names part of pump maintenance companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name pump maintenance companies. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.

RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.

Showing 25 of 744 pump maintenance companies based in the United States

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Pump maintenance companies based in the United States at a glance

As of Sep 20, 2026

36.2%Verified-email coverage

21.2Average contacts per company

11-50Median size (employees)

4.2%Largest-city concentration · Houston

Sep 20, 2026Page data refreshed

Companies by employee count

1-10

268

11-50

317

51-200

121

201-500

501-1,000

1,001-5,000

10001+

Email recency for this list is measured worldwide rather than for United States, so it is reported there. Company counts and contact totals on this page are exact for United States, over 744 companies.

How this list was built

Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among pump maintenance companies, so some rows will be adjacent to the category rather than pure plays. The description and RevenueBase Smart Search rating on every row are there so you can check each match yourself.

Source: The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase Smart Search, the natural-language company search available to every RevenueBase user.
What qualifies: Companies headquartered in the United States whose own description of what they do matches “pump maintenance companies”. Matching reads each company's description, not its industry code or its name.
RevenueBase Smart Search: RevenueBase Smart Search is how this list is assembled and how each row is rated. RevenueBase's data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to a category defined in a user's own words. Each row is rated strong evidence (its own description names pump maintenance companies), partial evidence (it names part of the category) or indirect evidence (the description shown names none of it and the match rests on the rest of the company's profile). The description supporting each rating is quoted on the row.
What we exclude: Companies whose own description does not clearly place them among pump maintenance companies, and records with no verified work email. Companies headquartered outside United States are excluded even when they keep an office there.
Match quality: In blind human judging of this matching method, 86% of matched companies were on target. Expect roughly 1 in 7 rows to be adjacent to the category rather than a pure play. Every row shows the company's own description and its RevenueBase Smart Search rating so you can judge each match yourself. Read the full methodology: how the lists are built, how the judging worked, and what the figure means.
Ranking: Team size, largest first: companies are ordered by the number of professionals RevenueBase tracks at each one. Employee ranges shown are reported bands, for context.
Verification: Every listed company carries at least one verified work email, 5,728 across the full list. Contacts re-verify on a rolling cadence, and each contact's own verification date is shown inside RevenueBase.
Refresh: This page's figures were pulled from the company graph on September 20, 2026. Lists refresh periodically as the graph is re-checked.
Corrections: Wrong category, wrong headquarters, or a company that has closed? Use “Report an issue” on any row. Reports go to the RevenueBase Data Team and feed back into the company graph.

Pump maintenance companies by metro

Pump maintenance companies in Houston31

Frequently asked

What is RevenueBase Smart Search?

RevenueBase Smart Search is how RevenueBase decides which companies belong on this list and how strongly each one fits. Its data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to the category the list is about. Each row is rated strong evidence when the company's own description names pump maintenance companies, partial evidence when it names part of the category, and indirect evidence when the description shown names none of it and the match rests on the rest of the company's profile.

How many pump maintenance companies are there based in the United States?

RevenueBase identified 744 pump maintenance companies headquartered in the United States as of September 2026, matched on each company's own description of what it does rather than its industry code.

What is the largest company on this list?

NCH, headquartered in Wilmington, tops this list with the largest team on record.

Which city has the most pump maintenance companies?

Houston leads with 31 headquartered companies, followed by Midland (8) and New York (7).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work the top results, verified emails and direct dials included. Upgrading unlocks all 5,728 verified decision-maker contacts tracked across these 744 companies.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 20, 2026.

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About this data

RevenueBase is a B2B data infrastructure company. Its company graph covers 60 million companies and 398.9 million professional contacts, with emails verified on a rolling cadence rather than scraped once and left to decay. These company lists are generated directly from that graph with RevenueBase Smart Search, the same natural-language company search every RevenueBase user has: describe a market in plain words, get the companies that match, and add verified emails and direct dials for the people at them. It is the same data that powers RevenueBase's B2B data products, and a free account includes 500 credits to start. How these lists are built and judged.